Ahmed , Ahmed A., Ayman E. Khedr, and Sherif A. Kholeif. “A CONCEPTUAL FRAMEWORK FOR SOFTWARE REQUIREMENTS VALIDATION”. IJRDO-Journal of Applied Science 5, no. 4 (May 9, 2019): 45-62. Accessed December 23, 2024. http://cpcontacts.ijrdo.org/index.php/as/article/view/2875.